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Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2021
Feb. 22, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Document Transition Report false    
Entity File Number 1-4639    
Entity Registrant Name CTS CORPORATION    
Entity Incorporation, State or Country Code IN    
Entity Tax Identification Number 35-0225010    
Entity Address, Address Line One 4925 Indiana Avenue    
Entity Address, City or Town Lisle    
Entity Address, State or Province IL    
Entity Address, Postal Zip Code 60532    
City Area Code 630    
Local Phone Number 577-8800    
Title of Each Class Common stock, without par value    
Trading Symbol CTS    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 1,185,691,656
Entity Common Stock, Shares Outstanding   32,152,367  
Entity Central Index Key 0000026058    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Auditor Name GRANT THORNTON LLP    
Auditor Firm ID 248    
Auditor Location Chicago, Illinois    
Documents Incorporated by Reference

(1)

Portions of the Proxy Statement to be filed for the annual meeting of shareholders to be held on or about May 12, 2022 are incorporated by reference in Part III.